Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5089538 | Composition suited for addition to ground excavation stabilizing liquid, stabilizing liquid composition, and ground excavation method | Yoshio Iizuka, Satoshi Tanaka, Manabu Yamamoto | 1992-02-18 |